Finding the Fourth Proportional to 459,421.92, 688,873.68 and 143,794.08
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Solution
The fourth proportional to 459,421.92, 688,873.68 and 143,794.08 is: 215,609.99
Step by Step Solution
- Step 1: Write the proportion equation
459,421.92 : 688,873.68 = 143,794.08 : x - Step 2: Convert to fraction form
459,421.92/688,873.68 = 143,794.08/x - Step 3: Cross multiply
459,421.92x = 688,873.68 × 143,794.08 - Step 4: Simplify right side
459,421.92x = 99,055,957,051.81 - Step 5: Solve for x
x = 99,055,957,051.81/459,421.92 - Step 6: Final answer
x = 215,609.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.